Just put the cfw your ps3 is on right now on a usb stick , if you change your hdd. when I changed my HDD on mine a few years back I remember having to reinstall the CFW again , I might be wrong , but yeah just do that, and make sure you don't have any disc inserted in your console when you do thatThank you all for the reply. I have decided that I will change my HDD. I hope that will solve the problem of the lag. One question that I have is do I have to re-jailbreak my new HDD that I will install or not? Because right now I do have a jailbreak of multiman version 4.75. Is that jailbreak installed onto the software or onto the current harddisk?